如圖，這是一個列表，每個商品有多項活動，默認(rèn)顯示前兩項，點擊箭頭顯示或隱藏剩余項，想了半天也想不出怎么實現(xiàn)

活動數(shù)據(jù)
{
  "activities": [{
    "attribute": "20.0",
    "description": "新用戶下單立減20元",
    "icon_color": "70bc46",
    "icon_name": "首",
    "id": 901011297,
    "is_exclusive_with_food_activity": true,
    "name": "新用戶立減(不與其他活動共享)",
    "tips": "新用戶下單立減20元",
    "type": 103
  }, {
    "description": "特價",
    "icon_color": "f1884f",
    "icon_name": "特",
    "id": 415458449,
    "name": "特價",
    "tips": "特價"
  }, {
    "description": "特價",
    "icon_color": "f1884f",
    "icon_name": "特",
    "id": 396974601,
    "name": "特價",
    "tips": "特價"
  }]
}